Improvement is cqffee-eoastees



B. K. MA LTBY. C0fi ee Roaster.

Patented May 26, 1868.

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BENJAMIN K. MALTBY, OF CINCINNATI, OHIO, ASSIGNOR TO THOMAS N. DRAKE, OF SAME PLACE.

Letters Patent No. 78,386, dated M21 1 26, 1868.

HJEPBOVEWZENT Ill-l UOPFEE-BOASTERS.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, BnNJAMIN K. MALTBY, of Cincinnati, in the county of Hamilton, and State of Ohio, have invented a new and useful l'mp'rcvementin Goii'ee-Roasters; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, and the letters marked there-on, making apart of this application, in which Figure l is a perspective view of the whole, as put together for use, and

Figure 2 a perspective view of the wheel only.

The nature of my invention consists in constructing a cylindrical cofi'ee-roaster with a revolving axle or shaft, provided with Wings 01' paddles, acting as opposite inclined planes. To these paddles are attached second-- ary planes or elastic plates, serving both as inclined planes and springs, enablipg the wheel, when in motion, to conform to any irregularity in the bed or -trough, and, acting in connection with the stationary semi-cylindrical bed, causes a transition of the substance being roasted back and fcrthupon the heated surface of the bed.

In the drawings presented, only two sets or pairs of these paddles are employed, though in larger structures more than two sets may be used.

The apparatus entire, as shown in fig. 1, is made of sheet or cast iron or copper, as may be preferred, and consists of a stationary semi-cylindrical bed or trough, marked A, resting upon a frameor case of the same material, indicated by the letter B, with an opening from below, as showuat 0, allowing the fire to rise upnnd around, and act upon the cylinder when placed upon anyheating-apparatus.

D is the shaft or axle upon which the arms E are attached, The arms orwings E are so placed, as shown in fig. 2, as to constitute opposite inclined planes, the two occupying the ends of the axle, throwing the article being roasted into the middle of the cylinder, the double one, in the middle, returning it to the ends.

The secondary wings or plates G, attached to the inclined planes E,-are elastic plates or blades, having the outer edges in a line with the axle or shaft, and are elasticfto enable the wheel, as before expressed, to accommodate itself to irregularities, if any, existin the bed, and to fit more closely to it without unnecessary friction. I

The other parts, not specifically referred to here, are simply mechanical contrivances, not essential to the principles contemplated in its structure, such asthe cover, the modes of fastening adopted forthe arms, or the mode of uniting the two inclined planes E and G; neither is it deemed essential that the framework in which the cylinder rests should conform in shape or material to the specimen.

What I claim as my invention, and desire to secure by Letters Patent, is

A coffee-roaster, provided with an axle or shaft, to which paddles, acting as inclined planes, and combined. ii'ith elastic plates, are attached, and which revolves within a stationary semi-cylindrical bed, the whole being constructed, arraiiged, and operated substantially in the manner and for the purpose described.-

BENJ. K. MALTBY. a 5.

Witnesses:

EnMuNo MASSON, PHILIP J. Donn, Jr. 

